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This first batch of buttons are 3/4 inch wide. The embroidery is done in purple silk on 28-count white linen.
These are 7/8 inch wide, and the linen is 32-count. Silk again. The design is the populace badge for the Kingdom of the Outlands, part of the Society for Creative Anachronism. I made the chart for these buttons myself because there wasn’t already a chart that would fit a circle, especially not one only 28 stitches across.